Alpine SWJ-12S4 Bassline 12" 1500W 300RMS Subwoofer

Alpine SWJ-12S4 BassLine 12" 1500w 300rms Subwoofer 12" subwoofer with 4-ohm voice coil polypropylene and mica cone with poly-foam surround frequency response: 22-200 Hz power handling: 50-250 watts RMS peak power: 750 watts sensitivity: 87.6 dB top-mount depth: 5-1/2" sealed box volume: 0.75-1.5 cu. ft ported box volume: 1.5-2.5 cu. ft.